Air conditioner and control method and control system thereof

Abstract

The application discloses an air conditioner and a control method and system thereof. The control method comprises the following steps: when the air conditioner is in a refrigeration operation mode, determining the relationship between the continuous operation time of the air conditioner and the preset continuous operation time; if the continuous operation time of the air conditioner is less than the preset continuous operation time, the outdoor unit is operated at a preset refrigeration target pressure; otherwise, determining the relationship between the average indoor refrigeration capacity and the preset average indoor refrigeration capacity; if the average indoor refrigeration capacity is less than the preset average indoor refrigeration capacity, the outdoor unit is operated at the preset refrigeration target pressure; otherwise, the outdoor unit is operated at a corrected refrigeration target pressure; when the air conditioner is in a heating operation mode, if there is a corrected refrigeration target pressure, calculating the difference between the preset refrigeration target pressure and the corrected refrigeration target pressure, and operating the outdoor unit at the sum of the preset heating target pressure and the difference; otherwise, operating the outdoor unit at the preset heating target pressure. The application can effectively adapt to the heat exchange characteristic differences of indoor units of different brands.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to an air conditioner and its control method and control system. Background Technology

[0002] The North American commercial market has a large number of residential air conditioning units without communication capabilities. Many customers, when upgrading their residential units, only replace the outdoor unit due to labor costs, installation difficulties, and other factors, leaving the indoor unit unchanged. Therefore, to suit the needs of North American customers, the units developed for the commercial market are designed with no communication between the indoor and outdoor units. The indoor and outdoor units operate independently without interference. Thus, inverter units often adjust the compressor frequency based on the target cooling pressure, collecting system pressure data and controlling the compressor frequency to reach the preset target cooling pressure.

[0003] However, during the installation of the outdoor unit, there may be situations where a third-party indoor unit is used. The size of the indoor unit's evaporator and the air volume are changed, and the preset cooling target pressure often cannot meet the customer's capacity requirements. It is easy to achieve the cooling target pressure but the capacity is insufficient. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an air conditioner and its control method and control system.

[0005] The present invention adopts the following technical solution:

[0006] The first aspect of this invention provides a method for controlling an air conditioner, comprising the following steps:

[0007] When the air conditioner is running in cooling mode, determine the relationship between the continuous running time of the air conditioner and the preset continuous running time.

[0008] If the continuous operating time of the air conditioner is less than the preset continuous operating time, the outdoor unit of the air conditioner will operate at the preset cooling target pressure.

[0009] If the continuous running time of the air conditioner is greater than or equal to the preset continuous running time, the average value of the indoor cooling capacity during the preset time period is calculated, and then the relationship between the average value of the indoor cooling capacity and the average value of the preset indoor cooling capacity is determined.

[0010] If the average indoor cooling capacity is less than the preset average indoor cooling capacity, the outdoor unit of the air conditioner will operate at the preset cooling target pressure; otherwise, the cooling target pressure will be adjusted and the outdoor unit will operate at the adjusted cooling target pressure.

[0011] When the air conditioner is in heating mode, if there is a corrected cooling target pressure, the difference between the preset cooling target pressure and the corrected cooling target pressure is calculated, and the outdoor unit of the air conditioner operates at the sum of the preset heating target pressure and the difference; otherwise, it operates at the preset heating target pressure.

[0012] According to the control method described above, calculating the average value of the indoor cooling capacity over a preset time period specifically includes:

[0013] Calculate the outdoor heating capacity for a preset time period before the preset continuous operating time, then calculate the indoor cooling capacity based on the outdoor unit power and the outdoor heating capacity, and finally calculate the average value of the indoor cooling capacity for the preset time period.

[0014] According to the control method described above, the outdoor heating capacity is calculated using the following formula:

[0015] Q 外 =m*c p *(T 外出 -T 外环 );

[0016] Among them, Q 外 Where m is the outdoor heating capacity, c is the air mass flow rate, and m is the outdoor heating capacity. p T is the specific heat capacity of air. 外出 T represents the outdoor condenser outlet air temperature. 外环 This refers to the outdoor ambient temperature.

[0017] According to the control method, the indoor cooling capacity is calculated using the following formula:

[0018] Q 内 =k*(Q 外 -W 外 );

[0019] Among them, Q 内 For indoor cooling capacity, W 外 denoted as outdoor unit power, and k as the heating / cooling balance ratio.

[0020] According to the control method, the step of correcting the cooling target pressure, with the outdoor unit of the air conditioner operating at the corrected cooling target pressure, specifically includes:

[0021] Calculate the difference between the preset target cooling pressure and the preset correction pressure;

[0022] If the difference is greater than or equal to the preset lower limit cooling target pressure, then the difference will be used as the corrected cooling target pressure;

[0023] Conversely, the preset lower limit cooling target pressure is used as the corrected cooling target pressure.

[0024] A second aspect of the present invention provides a control system for performing the above-described control method, comprising:

[0025] The judgment module is used to determine the relationship between the continuous running time of the air conditioner and the preset continuous running time, and to determine the relationship between the average value of the indoor cooling capacity and the preset average value of the indoor cooling capacity.

[0026] The calculation module is used to calculate the average value of indoor cooling capacity over a preset time period and the corrected cooling target pressure when the air conditioner is in cooling mode; and to calculate the difference between the preset cooling target pressure and the corrected cooling target pressure, and the sum of the heating target pressure and the difference when the air conditioner is in heating mode.

[0027] The control module, when the air conditioner is in cooling mode, determines whether the continuous running time is less than a preset continuous running time, and controls the outdoor unit to operate at a preset cooling target pressure; determines whether the average indoor cooling capacity is less than a preset average indoor cooling capacity, and controls the outdoor unit to operate at a preset cooling target pressure; determines whether the average indoor cooling capacity is less than a preset average indoor cooling capacity, and controls the outdoor unit to operate at a corrected cooling target pressure; when the air conditioner is in heating mode, it determines whether a corrected cooling target pressure exists. If a corrected cooling target pressure exists, it controls the outdoor unit to operate at the sum of the preset heating target pressure and the difference; otherwise, it controls the outdoor unit to operate at the preset heating target pressure.

[0028] A third aspect of the present invention provides an air conditioner, characterized in that it includes: a compressor, a condenser, and the aforementioned control system;

[0029] The refrigerant output from the outdoor compressor passes sequentially through the four-way valve, the condenser, the electronic expansion valve, and the thermal expansion valve into the indoor evaporator. The refrigerant evaporated in the evaporator then passes through the four-way valve back into the compressor.

[0030] The condenser is equipped with an outdoor air temperature sensor at the air outlet to obtain the outdoor condenser outlet temperature;

[0031] An ambient temperature sensor is installed near the condenser to obtain the outdoor ambient temperature.

[0032] A fourth aspect of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when loaded onto the processor, implements the control method described above.

[0033] A fifth aspect of the present invention provides a storage medium comprising a stored program, wherein the program, when running, controls the device where the storage medium is located to execute the control method described above.

[0034] Compared with the prior art, the beneficial effects of the present invention include at least the following:

[0035] 1. The air conditioning control method designed in this invention, when the air conditioner is running in cooling mode, determines whether the continuous running time of the air conditioner is greater than or equal to the preset continuous running time. If so, it further determines whether the average value of the indoor cooling capacity is greater than or equal to the preset average value of the indoor cooling capacity. If so, it corrects the cooling target pressure, and the outdoor unit of the air conditioner operates at the corrected cooling target pressure. When the air conditioner is running in heating mode, if there is a corrected cooling target pressure, the heating target pressure is calculated based on the corrected cooling target pressure; otherwise, it operates at the preset heating target pressure. This method can effectively adapt to the differences in heat exchange characteristics of indoor units from different brands, ensuring that the outdoor unit can still maintain the stability of system energy efficiency and cooling / heating performance through pressure adaptive adjustment when running with indoor units from different brands, and significantly improving the user experience in cross-brand scenarios.

[0036] 2. This invention calculates the outdoor heating capacity by multiplying the difference between the outdoor condenser outlet temperature and the outdoor ambient temperature by the air mass flow rate and the specific heat capacity of the air. Then, it calculates the indoor cooling capacity by multiplying the cooling-heat balance ratio by the difference between the outdoor heating capacity and the outdoor unit power. Based on the above calculation method and the law of conservation of energy, the indoor cooling capacity can be calculated more accurately.

[0037] 3. By setting a preset lower limit cold target pressure, this invention can prevent over-correction and thus ensure the safety of system operation. Furthermore, by using a clear threshold, i.e., the preset lower limit cold target pressure, and simple mathematical operations, i.e. comparing the difference with the preset lower limit cold target pressure, correction is achieved without the need for complex model prediction or adaptive algorithms, which reduces the computational burden and hardware cost of the air conditioner, while ensuring the reliability and feasibility of the correction logic. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a flowchart of the air conditioner control method of the present invention;

[0040] Figure 2 This is a schematic diagram of the air conditioning system of the present invention;

[0041] In the diagram: 1. Variable frequency compressor; 2. Four-way valve; 3. Condenser; 4. Electronic expansion valve; 5. Thermal expansion valve; 6. Evaporator; 7. Outdoor air temperature sensor; 8. Ambient temperature sensor. Detailed Implementation

[0042] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0043] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure.

[0044] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0045] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0046] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0048] like Figure 1 As shown, Embodiment 1 of the present invention provides a method for controlling an air conditioner, comprising the following steps:

[0049] Step S110: When the air conditioner is running in cooling mode, determine the relationship between the continuous running time of the air conditioner and the preset continuous running time, and determine whether there is a possibility of insufficient air conditioning capacity based on the relationship between the continuous running time of the air conditioner and the preset continuous running time.

[0050] Preferably, but not limitingly, the preset continuous operating time T1 can be determined after verification by in-plant testing, or different external ambient temperature ranges can be pre-defined, with each range corresponding to a preset continuous operating time T1, and the preset continuous operating time T1 can be determined according to the range of the monitored external ambient temperature.

[0051] Step S120: If the continuous operating time of the air conditioner is less than the preset continuous operating time T1, then the outdoor unit of the air conditioner operates at the preset cooling target pressure P. 目 run;

[0052] Generally, the higher the outdoor ambient temperature, the greater the required cooling capacity, and the higher the target cooling pressure P. 目 The lower;

[0053] Preferably, but not limitingly, the preset cooling target pressure P 目 The target cooling pressure P can be determined after verification through in-plant testing, or different ambient temperature ranges can be pre-defined, with each range corresponding to a preset cooling target pressure P. 目 The preset target cooling pressure P is determined based on the range of monitored ambient temperature. 目 .

[0054] Step S130: If the continuous operating time of the air conditioner is greater than or equal to the preset continuous operating time T1, then calculate the average value Q of the indoor cooling capacity over the preset time period. 内平 Then determine the average value Q of the indoor cooling capacity. 内平 The average value Q of the preset indoor cooling capacity 预平 The size relationship.

[0055] Preferably, but not limitingly, the calculation of the average indoor cooling capacity over a preset time period specifically includes: calculating the outdoor heating capacity Q over a preset time period before the preset continuous operating time. 外 Then, based on the outdoor unit power (W) 外 outdoor heating capacity Q 外 To calculate the indoor cooling capacity Q 内 Then calculate the average value Q of the indoor cooling capacity over the preset time period. 内平 .

[0056] Preferably, but not limitingly, the outdoor heating capacity Q 外 Calculated using the following formula:

[0057] Q 外 =m*c p *(T 外出 -T 外环 );

[0058] Among them, Q 外 Where m is the outdoor heating capacity, c is the air mass flow rate, and m is the outdoor heating capacity. pT is the specific heat capacity of air. 外出 T represents the outdoor condenser outlet air temperature. 外环 This refers to the outdoor ambient temperature.

[0059] Preferably, but not limitingly, the air mass flow rate m can be determined through factory verification, and the different outdoor unit speeds at different outdoor condenser outlet air temperatures T can be tested in advance. 外出 The air mass flow rate is m.

[0060] Preferably, but not limitingly, c p The specific heat capacity of the air in the area where the air conditioner is installed can be set to match the specific heat capacity of the air in the area where the air conditioner is installed.

[0061] Preferably, but not limitingly, the indoor cooling capacity is calculated using the following formula:

[0062] Q 内 =k*(Q 外 -W 外 );

[0063] Among them, Q 内 For indoor cooling capacity, W 外 denoted as outdoor unit power, and k as the heating / cooling balance ratio.

[0064] Preferably, but not limitingly, the cooling-heating balance ratio k is the heat balance ratio between the indoor and outdoor sides of the air conditioner, which can be determined through verification at the factory.

[0065] Step S140, if the average value of indoor cooling capacity Q 内平 Less than the average value Q of the preset indoor cooling capacity 预平 The outdoor unit of the air conditioner will operate at the preset target cooling pressure P. 目 If the target cooling pressure is not met, the outdoor unit will operate at the corrected target cooling pressure; otherwise, the target cooling pressure will be adjusted and the outdoor unit will operate at the adjusted target cooling pressure.

[0066] Preferably, but not limitingly, the correction of the cooling target pressure, with the outdoor unit of the air conditioner operating at the corrected cooling target pressure, specifically includes: calculating the difference between the preset cooling target pressure and the preset correction pressure; if the difference is greater than or equal to the preset lower limit cooling target pressure, then the difference is used as the corrected cooling target pressure; otherwise, the preset lower limit cooling target pressure is used as the corrected cooling target pressure.

[0067] Preferably, but not limitingly, the preset lower limit cold target pressure is determined according to the model of the air conditioner.

[0068] Step S150: When the air conditioner is in heating mode, if there is a corrected cooling target pressure, the difference between the preset cooling target pressure and the corrected cooling target pressure is calculated, and the outdoor unit of the air conditioner operates at the sum of the preset heating target pressure and the difference; otherwise, it operates at the preset heating target pressure.

[0069] This allows the outdoor unit to be compatible with different indoor units, increases the compressor frequency, meets customer capacity requirements, and improves the customer's user experience.

[0070] Embodiment 2 of the present invention provides a preferred embodiment of an air conditioner control method, which specifically includes the following steps:

[0071] Step S210: When the air conditioner is running in cooling mode, determine the relationship between the continuous running time of the air conditioner and the preset continuous running time.

[0072] Step S220: If the continuous running time of the air conditioner is less than the preset continuous running time of 120 minutes, the outdoor unit of the air conditioner will operate at the preset cooling target pressure P. 目 run;

[0073] Step S230: If the air conditioner's continuous operating time is greater than or equal to 120 minutes, calculate the outdoor heating capacity Q for the first 30 minutes of the 120-minute period. 外 That is, calculate the outdoor heating capacity Q over [90min, 120min]. 外 Then, based on the outdoor unit power (W) 外 outdoor heating capacity Q 外 To calculate the indoor cooling capacity Q 内 Then calculate the average value Q of the indoor cooling capacity over [90min, 120min]. 内平 Then determine the average value Q of the indoor cooling capacity. 内平 The average value Q of the preset indoor cooling capacity 预平 The size relationship.

[0074] Step S240, if the average value of indoor cooling capacity Q 内平 Less than the average value Q of the preset indoor cooling capacity 预平 The outdoor unit of the air conditioner will operate at the preset target cooling pressure P. 目 Run; conversely, calculate the difference between the preset cooling target pressure and the preset correction pressure (preset cooling target pressure P). 目 -Preset correction pressure 100kPa), the outdoor unit of the air conditioner operates at the differential cooling target pressure, however, P 目 The minimum pressure cannot be lower than the preset limit of 700 kPa for cold target pressure.

[0075] Step S250: When operating in heating mode, if a corrected cooling target pressure exists, the outdoor unit of the air conditioner operates at the heating target pressure calculated by the following formula:

[0076] Heating target pressure = Preset heating target pressure + Preset cooling target pressure - Corrected cooling target pressure;

[0077] Conversely, the outdoor unit of the air conditioner will operate at the preset heating target pressure.

[0078] Embodiment 3 of the present invention provides a control system, comprising:

[0079] The judgment module is used to determine the relationship between the continuous running time of the air conditioner and the preset continuous running time, and to determine the relationship between the average value of the indoor cooling capacity and the preset average value of the indoor cooling capacity.

[0080] The calculation module is used to calculate the average value of indoor cooling capacity over a preset time period and the corrected cooling target pressure when the air conditioner is in cooling mode; and to calculate the difference between the preset cooling target pressure and the corrected cooling target pressure, and the sum of the heating target pressure and the difference when the air conditioner is in heating mode.

[0081] The control module, when the air conditioner is in cooling mode, determines whether the continuous running time is less than a preset continuous running time, and controls the outdoor unit to operate at a preset cooling target pressure; determines whether the average indoor cooling capacity is less than a preset average indoor cooling capacity, and controls the outdoor unit to operate at a preset cooling target pressure; determines whether the average indoor cooling capacity is less than a preset average indoor cooling capacity, and controls the outdoor unit to operate at a corrected cooling target pressure; when the air conditioner is in heating mode, it determines whether a corrected cooling target pressure exists. If a corrected cooling target pressure exists, it controls the outdoor unit to operate at the sum of the preset heating target pressure and the difference; otherwise, it controls the outdoor unit to operate at the preset heating target pressure.

[0082] like Figure 2 As shown, Embodiment 4 of the present invention provides an air conditioner, including a compressor 1, a condenser 3, and the aforementioned control system.

[0083] The refrigerant output from the outdoor compressor 1 passes through the four-way valve 2, condenser 3, electronic expansion valve 4, and thermal expansion valve 5 in sequence before entering the indoor evaporator 6. The refrigerant evaporated in the evaporator 6 then enters the compressor 1 again through the four-way valve 2.

[0084] A fan is installed on the outside of the condenser 3, and the condenser 3 and the fan are in the same air duct.

[0085] A blower is provided on the outside of the evaporator 6, and the evaporator 6 and the blower are in the same air duct.

[0086] An outdoor air temperature sensor 7 is installed at the air outlet of the condenser 3 to obtain the outdoor condenser outlet air temperature T_outdoor.

[0087] An ambient temperature sensor 8 is installed near the condenser 3 to obtain the outdoor ambient temperature T. 外环 .

[0088] Embodiment 5 of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is loaded onto the processor, it implements the control method described above.

[0089] Embodiment 6 of the present invention provides a storage medium, the storage medium including a stored program, wherein the program controls the device where the storage medium is located to execute the above-described control method during runtime.

[0090] Storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Storage media can be, for example, but not limited to, electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination thereof. More specific examples of storage media (a non-exhaustive list) include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination thereof. Storage media as used herein is not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0091] The computer-readable program instructions described herein can be downloaded from storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper cables, fiber optic cables, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to storage media within the respective computing / processing device.

[0092] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that, Includes the following steps: When the air conditioner is running in cooling mode, determine the relationship between the continuous running time of the air conditioner and the preset continuous running time. If the continuous operating time of the air conditioner is less than the preset continuous operating time, the outdoor unit of the air conditioner will operate at the preset cooling target pressure. If the continuous running time of the air conditioner is greater than or equal to the preset continuous running time, the outdoor heating capacity of the preset time period before the preset continuous running time is calculated, and the indoor cooling capacity is calculated based on the outdoor unit power and the outdoor heating capacity. Then, the average value of the indoor cooling capacity of the preset time period is calculated, and the relationship between the average value of the indoor cooling capacity and the average value of the preset indoor cooling capacity is determined. The outdoor heating capacity is calculated using the following formula: ； where Q 外 is the outdoor heating capacity, m is the air mass flow rate, c p is the specific heat capacity of air, T 外出 is the outdoor condenser outlet air temperature, T 外环 is the outdoor ambient temperature; The outdoor heating capacity is calculated using the following formula: ； where Q 外 is the outdoor heating capacity, m is the air mass flow rate, c p is the specific heat capacity of air, T 外出 is the outdoor condenser outlet air temperature, T 外环 is the outdoor ambient temperature; If the average indoor cooling capacity is less than the preset average indoor cooling capacity, the outdoor unit of the air conditioner will operate at the preset cooling target pressure; otherwise, the difference between the preset cooling target pressure and the preset correction pressure will be calculated. If the difference is greater than or equal to the preset lower limit cooling target pressure, the difference will be used as the corrected cooling target pressure; if the difference is less than the preset lower limit cooling target pressure, the preset lower limit cooling target pressure will be used as the corrected cooling target pressure, and the outdoor unit of the air conditioner will operate at the corrected cooling target pressure. When the air conditioner is in heating mode, if there is a corrected cooling target pressure, the difference between the preset cooling target pressure and the corrected cooling target pressure is calculated, and the outdoor unit of the air conditioner operates at the sum of the preset heating target pressure and the difference; otherwise, the outdoor unit of the air conditioner operates at the preset heating target pressure.

2. A control system for executing the control method of claim 1, characterized in that, include: The judgment module is used to determine the relationship between the continuous running time of the air conditioner and the preset continuous running time, and to determine the relationship between the average value of the indoor cooling capacity and the preset average value of the indoor cooling capacity. The calculation module is used to calculate the average indoor cooling capacity over a preset time period and to correct the target cooling pressure when the air conditioner is running in cooling mode. When the air conditioner is in heating mode, it is used to calculate the difference between the preset cooling target pressure and the corrected cooling target pressure, as well as the sum of the heating target pressure and the difference. The control module, when the air conditioner is in cooling mode, determines whether the continuous running time of the air conditioner is less than the preset continuous running time, and controls the outdoor unit of the air conditioner to operate at the preset cooling target pressure; determines whether the average indoor cooling capacity is less than the preset average indoor cooling capacity, and controls the outdoor unit of the air conditioner to operate at the preset cooling target pressure; determines whether the average indoor cooling capacity is greater than or equal to the preset average indoor cooling capacity, and controls the outdoor unit of the air conditioner to operate at the corrected cooling target pressure. When the air conditioner is in heating mode, it is used to determine whether there is a corrected cooling target pressure. If there is a corrected cooling target pressure, the outdoor unit of the air conditioner is controlled to operate at the sum of the preset heating target pressure and the difference. Conversely, the outdoor unit of the air conditioner will be controlled to operate at the preset heating target pressure.

3. An air conditioner, characterized in that, include: The compressor, the condenser, and the control system as described in claim 2; The refrigerant output from the outdoor compressor passes sequentially through the four-way valve, the condenser, the electronic expansion valve, and the thermal expansion valve into the indoor evaporator. The refrigerant evaporated in the evaporator then passes through the four-way valve back into the compressor. The condenser is equipped with an outdoor air temperature sensor at the air outlet to obtain the outdoor condenser outlet temperature; An ambient temperature sensor is installed near the condenser to obtain the outdoor ambient temperature.

4. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the computer program is loaded into the processor, it executes the control method of claim 1.

5. A storage medium, characterized in that: The storage medium includes a stored program, wherein the program, when running, controls the device containing the storage medium to execute the control method of claim 1.

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